// Generate hold piece by swapping active piece with hold piece
public void GenerateHold()
{
// First time holding a block, hold piece does not yet exist
if (holdPiece == null)
{
blockRotation = 1;
RotateBlock();
holdPiece = activePiece;
// Depending on block type, place hold piece in certain location
if (holdPiece.GetBlockType() == 1 || holdPiece.GetBlockType() == 2)
{
holdPiece.SetX(55);
holdPiece.SetY(105);
}
else
{
holdPiece.SetX(65);
holdPiece.SetY(105);
}
// Generate new active piece to replace old
GeneratePiece();
}
// hold piece already exists
else
{
blockRotation = 1;
RotateBlock();
// Use place holder inbetween piece to swap pieces
inbetweenPiece = holdPiece;
holdPiece = activePiece;
// Depending on block type, place hold piece in certain location
if (holdPiece.GetBlockType() == 1 || holdPiece.GetBlockType() == 2)
{
holdPiece.SetX(55);
holdPiece.SetY(105);
}
else
{
holdPiece.SetX(65);
holdPiece.SetY(105);
}
// Turn old hold piece into active piece and place in specific location
int dropColumnOffset = (numCols - 4) / 2 * blockWidth;
activePiece = inbetweenPiece;
activePiece.SetX(dropColumnOffset + xOffset);
activePiece.SetY(50);
}
}
// Rotates block
private void RotateBlock()
{
activePiece.myBlocks = null;
activePiece = new Piece(activePiece.xOffset, activePiece.yOffset, 4, 4, 4 * blockWidth, 4 * blockHeight, activePiece.GetBlockType(), blockRotation);
}